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Title imporved improved by Geoffrey Critzer, Sep 16 2022
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Eric Weisstein's World of Mathematics, <a href="httphttps://mathworld.wolfram.com/Periodic MatrixPeriodicMatrix.html">Periodic Matrix</a>
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Title imporve imporved by Geoffrey Critzer, Sep 16 2022
Number of recurrent periodic n X n matrices over GF(2).
Here, T is a recurrent periodic matrix if T = T^k for some k > 1. T is recurrent periodic iff image(T) = image(T^2) iff x^2 does not divide the minimal polynomial of T.
Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Periodic Matrix.html">Periodic Matrix</a>
Title imporve by Geoffrey Critzer, Sep 16 2022
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